What is the primary factor in determining the classification for an elliptical galaxy?
a. size
b. shape
c. mass
d. color
b
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Draw the aligned positions of the Sun, Moon, and Earth during a lunar eclipse. Draw the umbra and penumbra. Label all
What will be an ideal response?
When you run along the hall from one classroom to another you're moving through
A) space. B) time. C) both of these D) none of these
Most standalone digital cameras, and virtually all smartphones, include ______ or other wireless transfer capabilities.
A. infrared B. radio waves C. Bluetooth D. microwaves
In video 1 for Chapter 17, how does the fringe spacing change when the distance between the slits, d, is increased?
A. The fringes get farther apart. B. The fringe spacing stays the same. C. The fringes get closer together. D. It depends on how wide the slits are.